Window frame



patented May 7, 1929.

WILLIAMP. ORTH, OF MILWAUKEE, WISCONSIN.

WINDOW FRAME.

Application filed January 6, 1927. Serial No. 159,355.

The invention relates to window. frames and more particularly to those of knockdown construction.

lVindow frames are frequently dr ;ributed and sold in lrnoclcdown condition to facili-' tate shipment and storage, and required to be assemliiled before use. As assembling is sometimes done hastily and carelessly in the field, the various parts may not he accurately fitted together, thereby detracting from the appearance of the frame in l sometimes preventing proper fitting of the sash.

It is an object of the present Iiventionto provide aknock-down window frame which can be accurately and quickly assembled to present a workmanlilre appearance and to insure proper fitting of the sash.

Another object of the invention is to provide a window frame which is weather-tight and in which the side jainbs may be used interchangeably as uiullion jambs without alteration.

A. further object is to perfect detailsof construction generally and to effect ceonomics inmanufact 1 Y The invention further consists'in the several features hereinafter set forth and more particularly defined by the annexed claims.

In the accompanying drawings, F is an outside elevation of a window frame emhodyiii g the invention;

2 is an inside elevation thereof on a larger scale;

3 is adetail sectional view taken on the line 3-3 of Fig. 2;

Fig. 4 is a detail sectional view talien on the line 4-4 of Fig. 2;.and

Fig. 5 is a detail transverse sectional. view taken through one of the side jainbs,

In these drawings, the numeral 10 dcsignates spaced side jambs, each provided at both ends with a tonguewll formed by rabbeting. The upper tongued ends of the side jambs 10 are let into grooves or dadoes 12 extending transversely across the lower face of a head jamb 13, and the lower tongued ends of the jambs are let into transverse grooves 14 formed in the upper face of a sill 15, the grooves 14- extending to the rear edge of the sill but terminating some distance short of the forward edge. The ends of the head jamb 18 and sill 15 project some distance beyond the side jambs, so that vertically disposed boards 16 parallel to the side jambs may be nailed against these ends to form boxes for sash weights 17, as seen in lower ends against ing 21 near-its loweredge.

groove 32 is formed in Figs. 2 and 5. The side jamhs 10 extend integrally from edge to edgeand both have their forward I edges provided with full length tongues 18, formed by rabbeting, to enter and snugly fit within longitudinal grooves 1901i the inner faces of side'cisings 20. The side casings 20 abut at their the outer projecting por tions or horns of the sill 1f and the upper ends of the side casings ext-end above the head jamb 13 to be flush with the upper edge of a head casing 21. The headjamb is also provided with a tongue 22 at its forward edge to enter a horizontalgroove 23 extending longitudinally of the head cas- W The upper edge of the head casing 21 and the upper ends of the side casingdZO flush therewith are si'irinounted hya rabheted head casing cap 2d, preferably provided with awatcr drip the latter against lateral binding or breakage after the head casing cap is in place.

The inner faces of the side jamhs ll) and the head jamb 1.3 are provided. with grooves 26 and 27, respectively, to receive parting stops 28,-and are also provided near th forward edges with shallow rabbcts '29 to receive blind stops 3O spaced forwardlv from the parting stops. The parting stops 28 andblind stops 30 are each of the same rectangular cross'section, as seen in Figs l and 5, the parting stops 28 being inserted on edge while the blindstops 30 rest on one face. 1

v The lower face of the sill l5 provided with a longitudinal groove 31 for receiving the sheathing of the ear the forward eiilge The usu: 1 interior trim 83 of the sill.

subsequently secured to the side and head building and a drip as i manently secured together by nails or screws, as the case may be, and to firmly secure the lower ends of the side jambs in the sill, cleats 84: are provided to abut against the sill and the adjacent outer faces of the side jambs and to receive nails entering both the side jambs and the sill, as indicated in Fig. 2. The head casing cap 24 is then secured in abutment with the upper edge of the head casing and the upper ends of the side casings. The frame is then ready to receive the sashes 35 and be incorporated in a building wall in the usual manner.

In the case of a mullioned frame, the sill and head jamb are each formed in one piece and provided with intermediate transverse grooves to receive the mullion jambs, which are identical with the side jainbs 10 and interchangeable therewith without alteration. In this manner, manufacturing operations are simplified and fewer parts need be carried in stock by the distributor. As the parting stops and blind stops are of identical cross-section this also facilitates manufacture. The inter-fitting of the sev-' eral parts of the frame serves to permit convenient, accurate and inexpensive assembly and also serves to afford weather-tightness, which is of importance in vindow frame construction. By simple alterations, chiefly the addition of molding strips to the head and side easing jambs, or the narrowing of the side and head casings, or both, it is possible to convert the frame for use with brick, brick veneer, concrete, stucco, or tile walls, as conditions require. In the case of masonry construct-ion, the side pieces 16 shown in 2 are of particular value in conveniently forming the sash weight boxes.

What I claim as new and desire to secure by Letters Patent is:

1. In a window frame, the combination of a sill, spaced side jambs secured to said sill, a head jainb secured to said side jambs, said side jambs and head jamb having projecting tongues at their forward edges, and side and head casings having grooves on their inner faces forming a continuous channel receiving the tongues on said side and head jambs for securing the interalignment of said parts and for effecting a weathertight seal and blind stops secured to the inner faces of said side and head j ambs.

2. In a window frame, the combination 'of a sill having spaced transverse grooves on its upper face, a head jamb having spaced transverse grooves on its lower face and a longitudinally extending tongue on its forward edge, a pair of side jambs having tongues at each end adapted to enter and fit within said grooves in said sill and said head jamb, said side j ambs also having longitudinal tongues at their forward edges, and side and head casings having communicating grooves on their inner faces adjacent their inner edges adapted to receive said tongues on said head and side jambs for securing the interalignment of said parts and effecting a weather-tight seal, and blind stops secured to the inner faces of said side and head jambs.

3. In a window frame, the combination of a sill having transverse jamb-receiving grooves on its upper face, side jambs having their lower ends adapted to enter said grooves, and cleats secured transversely to the outer faces of said side jambs adjacent the lower ends thereof and adapted for nailing against the upper face of said sill to secure said jambs to said sill.

4. In a window frame, the combination of a sill, spaced side jambs secured to said sill, a head 'jamb secured to said side jambs, said side jambs and head jamb having projecting tongues at their forward edges and having aligned rabbets on their inner faces adjacent the tongued forward edges, blind stops secured in said rabbets, and side and head casings having communicating grooves on their inner faces receiving the tongues of said side and head gjtlIHbS for securing the interalignment of said parts and for effecting a weather-tight seal.

5. In a window frame, the combination of a sill having a transverse jamh-receiving groove on its upper face, a side jamb having its lower end adapted to enter said groove, a cleat nailed transversely to the face of the side jamb opposite its sash-receiving portion and adjacent the lower end of said jamb in position to subsequently abut against the upper face of said. sill, and fastening nails passing vertically and diagonally through said cleat to enter said sill, said diagonally disposed nails also passing through the lower end portions of said jamb.

In testimony whereof, I aflix my signature.

WILLIAM P. ORTH. 

